Figure 3
From: AtOPR3 specifically inhibits primary root growth in Arabidopsis under phosphate deficiency
AtOPR3’s function in mediating primary root growth under low P is independent of JA biosynthesis and signaling.
Primary root length of wild type and mutant lines (Atopr3 and Ws; coi1-1 and Col-0) were analyzed under various treatments. Five-day-old seedlings were transferred to whole nutrient (Control) or low P (-P) solutions in the presence or absence of various chemicals for 7 days. IBU and DIECA were used to block JA biosynthesis. (a) Effects of various concentrations of JA on primary root growth. (b) Effects of 5 μM IBU (-P + IBU) or 5 μM DIECA (-P + DIECA) on primary root growth. (c) Comparison of primary root growth between Col-0 and coi1-1 under control and low P conditions. Results were presented as means (n = 30) with error bars (standard deviation). Asterisks indicated significant differences as determined by a t-test analysis (*P < 0.05; **P < 0.01).
